引導賓語從句的that在下列情況下一般不省略：

1、賓語從句前有插入語。

如：We hope, on the contrary, that he will stay at home with us.

恰恰相反，我們希望他和我們呆在家裡。

2、有間接賓語時。

如：He told me that he was leaving for Japan.

他告訴我他要去日本。

3、that在與之並列的另一個賓語從句之後。

如：He said (that) the book was very interesting and that(不省略) all the children like to read it.

他說那本書很有趣，所有小孩都喜歡讀。

4、在“it(形式賓語)+補語”之後時。

如：I think it necessary that he should stay here.

我們認為他有必要留在這裡。

5、that從句單獨回答問題時。

如：—What did he hear?

他聽說了什麼事？

—That Kate had passed the exam.

(他聽說)凱特考試及格了。

6、在except等介詞後。

如：He has no special fault except that he smokes too much.

他除了抽菸太多之外,沒有什麼特別的毛病。

7、位於句首時。

如：That our team will win, I believe.

我相信我們隊會贏。

8、在較為正式或不常用的動詞(如reply, object)後。

如：He replied that he disagreed.

他回答說他不同意。